18447660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^4$

素因数の和:66

約数の個数: 180

約数和(自身を含む): 70346640

約数和(自身を除く): 51898980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 121, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 242, 252, 308, 315, 330, 363, 385, 396, 420, 462, 484, 495, 605, 630, 660, 693, 726, 770, 847, 924, 990, 1089, 1155, 1210, 1260, 1331, 1386, 1452, 1540, 1694, 1815, 1980, 2178, 2310, 2420, 2541, 2662, 2772, 3388, 3465, 3630, 3993, 4235, 4356, 4620, 5082, 5324, 5445, 6655, 6930, 7260, 7623, 7986, 8470, 9317, 10164, 10890, 11979, 12705, 13310, 13860, 14641, 15246, 15972, 16940, 18634, 19965, 21780, 23958, 25410, 26620, 27951, 29282, 30492, 37268, 38115, 39930, 43923, 46585, 47916, 50820, 55902, 58564, 59895, 73205, 76230, 79860, 83853, 87846, 93170, 102487, 111804, 119790, 131769, 139755, 146410, 152460, 167706, 175692, 186340, 204974, 219615, 239580, 263538, 279510, 292820, 307461, 335412, 409948, 419265, 439230, 512435, 527076, 559020, 614922, 658845, 838530, 878460, 922383, 1024870, 1229844, 1317690, 1537305, 1677060, 1844766, 2049740, 2635380, 3074610, 3689532, 4611915, 6149220, 9223830, 18447660]

約数ペア:

[(1, 18447660), (2, 9223830), (3, 6149220), (4, 4611915), (5, 3689532), (6, 3074610), (7, 2635380), (9, 2049740), (10, 1844766), (11, 1677060), (12, 1537305), (14, 1317690), (15, 1229844), (18, 1024870), (20, 922383), (21, 878460), (22, 838530), (28, 658845), (30, 614922), (33, 559020), (35, 527076), (36, 512435), (42, 439230), (44, 419265), (45, 409948), (55, 335412), (60, 307461), (63, 292820), (66, 279510), (70, 263538), (77, 239580), (84, 219615), (90, 204974), (99, 186340), (105, 175692), (110, 167706), (121, 152460), (126, 146410), (132, 139755), (140, 131769), (154, 119790), (165, 111804), (180, 102487), (198, 93170), (210, 87846), (220, 83853), (231, 79860), (242, 76230), (252, 73205), (308, 59895), (315, 58564), (330, 55902), (363, 50820), (385, 47916), (396, 46585), (420, 43923), (462, 39930), (484, 38115), (495, 37268), (605, 30492), (630, 29282), (660, 27951), (693, 26620), (726, 25410), (770, 23958), (847, 21780), (924, 19965), (990, 18634), (1089, 16940), (1155, 15972), (1210, 15246), (1260, 14641), (1331, 13860), (1386, 13310), (1452, 12705), (1540, 11979), (1694, 10890), (1815, 10164), (1980, 9317), (2178, 8470), (2310, 7986), (2420, 7623), (2541, 7260), (2662, 6930), (2772, 6655), (3388, 5445), (3465, 5324), (3630, 5082), (3993, 4620), (4235, 4356)]